Molecular characterization of Bacillus thuringiensis strains to control Spodoptera eridania (Cramer) (Lepidoptera: Noctuidae) population

被引：0

作者：

Bittencourt Machado, Deborah Heloisa ^{[1
]}

do Livramento, Kalynka Gabriela ^{[2
]}

Flausino Maximo, Wesley Pires ^{[2
]}

Negri, Barbara Franca ^{[3
]}

Paiva, Luciano Vilela ^{[4
]}

Valicente, Fernando Hercos ^{[1
]}

机构：

[1] Embrapa Milho & Sorgo, NBA, Sete Lagoas, MG, Brazil

[2] Univ Fed Lavras UFLA, Lab Cent Biol Mol, Lavras, MG, Brazil

[3] Univ Fed Sao Joao del Rei UFSJ, Sao Joao Del Rei, MG, Brazil

[4] Univ Fed Lavras UFLA, Dept Quim, Lavras, MG, Brazil

来源：

REVISTA BRASILEIRA DE ENTOMOLOGIA | 2020年 / 64卷 / 01期

关键词：

Entomopathogenic bacteria; Insect pest; Molecular typing; Toxicity; REP-PCR; ERIC-PCR; DIVERSITY; FRUGIPERDA; CRY;

D O I：

10.1590/1806-9665-RBENT-2019-47

中图分类号：

Q96 [昆虫学];

学科分类号：

摘要：

The main objective of this study was to characterize the toxicity and genetic divergence of 18 Bacillus thuringiensis strains in the biological control of Spodoptera eridania. Bacterial suspensions were added to the S. eridania diet. Half of the selected B. thuringiensis strains caused high mortality seven days after infection. The genetic divergence of B. thuringiensis strains was assessed based on Enterobacterial Repetitive Intergenic Consensus (ERIC) and Repetitive Extragenic Palindromic (REP) sequences, and five phylogenetic groups were formed. Despite their genetic diversity B. thuringiensis strains did not show any correlation between the collection sites and toxicity to larvae. Some B. thuringiensis strains are highly toxic to S. eridania, thus highlighting the potential of their endotoxins as biopesticides.

引用

页数：6

共 39 条

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